#include <iostream>
#include <vector>
using namespace std;

int main() 
{
    // 1、读如数据
    int n = 0, m = 0, q = 0;
    cin >> n >> m >> q;
    vector<vector<int>> matrix(n + 1, vector<int>(m + 1));
    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= m; ++j)
            cin >> matrix[i][j];
    // 2、预处理一个前缀和数组
    vector<vector<long long>> dp(n + 1, vector<long long>(m + 1));
    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= m; ++j)
            dp[i][j] = dp[i - 1][j] + dp[i][j - 1] + matrix[i][j] - dp[i - 1][j - 1];
    // 3、使用前缀和数组解决问题
    for(int x1, y1, x2, y2; q--;)
    {
        cin >> x1 >> y1 >> x2 >> y2;
        cout << dp[x2][y2] - dp[x1 - 1][y2] - dp[x2][y1 - 1] + dp[x1 - 1][y1 - 1] << endl;
    }
}